A new Pew Research Center Poll reveals a steep decline among Americans who say there is solid evidence that global warming is a serious problem. 35% agree today that global warming is a serious problem, down from 44% in April 2008.
Equally concernful, there has been a comparable decline in the proportion of Americans who say global temperatures are rising as a result of human activity, such as burning fossil fuels. Just 36% say that currently, down from 47% last year.
A general belief in global warming has lost credibility among America’s Independent voters, with 53% seeing solid evidence of gobal warming vs. 75% in April 2008. There is also steep erosion among liberal Republicans in believing that global warming exists.